package 학생관리;

import java.util.HashSet;

class Lotto {
    private HashSet<Integer> arrNum;
 
    public Lotto(HashSet<Integer> arrNum) {
        this.arrNum = arrNum;
    }
 
    public int getNum() { //숫자 받기
    	
        return ((int) (Math.random() * 45) + 1);
    }
    
    public boolean search(int s) { //중복검색
        if (arrNum.contains(s)) { //중복값 있으면 true
            return true;
        } else {
            return false;
        }
    }
    
    public void prnArr() { //출력
        for (int i = 0; arrNum.size() < 6 ; i++) {
            if (search(getNum())) {
                i--;
            } else {
                arrNum.add(getNum());
            }
        }
        System.out.println(arrNum);
    }
}
 
 
public class LottoTest {
    public static void main(String[] args) {
 
        HashSet<Integer> s1 = new HashSet<>();
        Lotto l = new Lotto(s1);
        l.prnArr();
    
    }
}